
#pragma once

#include <string.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>

#define LINE_SIZE 1024
#define FLUSH_NOW  1
#define FLUSH_LINE 2
#define FLUSH_FULL 4

struct _myFILE
{
    unsigned int flags;
    int fileno;
    // 缓冲区
    char cache[LINE_SIZE];
    int cap;
    int pos; // 下次写入的位置
};

typedef struct  _myFILE myFILE;

myFILE* my_fopen(const char *path, const char *flag);
void my_fflush(myFILE *fp);
ssize_t my_fwrite(myFILE *fp, const char *data, int len);
void my_fclose(myFILE *fp);

